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Finding the Fourth Proportional to 12,810.87, 17,673.03 and 8,029.26

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Solution

The fourth proportional to 12,810.87, 17,673.03 and 8,029.26 is: 11,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.87 : 17,673.03 = 8,029.26 : x
  2. Step 2: Convert to fraction form
    12,810.87/17,673.03 = 8,029.26/x
  3. Step 3: Cross multiply
    12,810.87x = 17,673.03 × 8,029.26
  4. Step 4: Simplify right side
    12,810.87x = 141,901,352.86
  5. Step 5: Solve for x
    x = 141,901,352.86/12,810.87
  6. Step 6: Final answer
    x = 11,076.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.